mastodon/app/assets/stylesheets/compact_header.scss

.compact-header {
  h1 {
    font-size: 24px;
    line-height: 28px;
    color: $color3;
    overflow: hidden;
    font-weight: 500;
    margin-bottom: 20px;

    a {
      color: inherit;
      text-decoration: none;
    }

    small {
      font-weight: 400;
      color: $color2;
    }

    img {
      display: inline-block;
      margin-bottom: -5px;
      margin-right: 15px;
      width: 36px;
      height: 36px;
    }
  }
}